2010 Buick Enclave - all sound is lost

I have a 2010 Buick Enclave that just recently lost all sound. No directional sound, no radio, bluetooth etc. Sometimes I get this static sound from the speaker that comes on even when the car is not running. Hoping you can tell me what the problem may be.

Your radio failed, I’d guess. The radio provides nearly all the warning dings, bings and bongs as well as the radio.